What Are the Types of Mortgage Loans? A Complete Comparison Guide

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    TL;DR: Credit Score Requirements for Buying a Home

    • Most mortgage programs require a minimum credit score between 500 and 700, depending on the loan type, with conventional loans typically requiring at least 620.
    • Your credit score directly affects your interest rate. On a $400,000 mortgage, the difference between a 680 and 740 score can cost $40,000 or more in extra interest over 30 years.
    • FHA loans accept scores as low as 580 with 3.5% down, while VA and USDA loans have more flexible requirements for eligible borrowers.
    • You can improve your credit score by 20 to 100 points in 90 days through targeted actions like reducing credit card balances, disputing errors, and avoiding new hard inquiries.
    • A knowledgeable real estate agent can connect you with lenders who specialize in your credit profile and help you explore all available options.

    Your credit score is one of the most important numbers in the home buying process, and it influences far more than whether you qualify for a mortgage. It determines the interest rate you receive, the loan programs available to you, how much you pay in private mortgage insurance, and ultimately how much your home costs over the life of the loan.

    Many buyers focus only on meeting the minimum credit score to qualify and overlook the financial impact of each credit tier. A buyer with a 680 score who qualifies for a mortgage might celebrate the approval without realizing that a 740 score would save them tens of thousands of dollars. Understanding exactly where you stand, what each tier means for your wallet, and how to improve quickly before applying gives you a significant financial advantage.

    This guide breaks down the credit score requirements for every major loan type, shows the real dollar cost of different credit tiers, and provides a 90-day action plan for improving your score before you apply for a mortgage.

    How Credit Scores Work in Mortgage Lending

    When lenders evaluate your mortgage application, they pull credit reports from all three major bureaus: Equifax, Experian, and TransUnion. Each bureau generates its own FICO score, and mortgage lenders use a specific version of the FICO scoring model (typically FICO Score 5, 4, or 2, depending on the bureau) rather than the consumer scores you see on free monitoring sites. This means the score you check on your banking app may differ from the score your lender sees by 20 points or more.

    According to FICO, lenders use the middle score when all three bureaus return a result. If you have scores of 710, 725, and 740, your qualifying score is 725. For joint applications, lenders use the lower of the two borrowers' middle scores, which is why it is critical for both applicants to review their credit well before applying.

    300-850
    FICO Score Range
    620
    Conventional Loan
    Minimum Score
    580
    FHA Loan Minimum
    (3.5% Down)

    The Five Factors That Determine Your Score

    Your FICO score is calculated from five categories of credit behavior, each carrying a different weight in the formula. Understanding these factors is the first step toward improving your score strategically.

    Payment history (35% of your score) is the single largest factor. Even one late payment of 30 days or more can drop your score by 60 to 100 points, according to FICO data. A consistent record of on-time payments over 12 to 24 months is the strongest foundation for a strong credit score.

    Credit utilization (30%) measures how much of your available revolving credit you are using. The Consumer Financial Protection Bureau (CFPB) recommends keeping utilization below 30%, but borrowers with the highest scores typically maintain utilization below 10%. This is also the factor you can improve most quickly.

    Length of credit history (15%) considers the average age of your accounts and the age of your oldest account. Closing old credit cards, even ones you no longer use, can shorten your average account age and lower your score.

    Credit mix (10%) rewards borrowers who demonstrate experience with different types of credit, including installment loans (auto, student) and revolving accounts (credit cards).

    New credit inquiries (10%) tracks how many new accounts you have opened or applied for recently. Each hard inquiry can reduce your score by 2 to 5 points. However, mortgage-related inquiries made within a 14 to 45 day window (depending on the FICO model) are grouped as a single inquiry, so shopping multiple lenders for the best rate will not significantly hurt your score.

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    Minimum Credit Score Requirements by Loan Type

    Different mortgage programs have different credit score thresholds. The minimum score required to qualify varies by loan type, and in many cases, lenders impose their own requirements (called "overlays") that exceed the program minimums. Here is what each major loan type requires.

    Loan Type Program Minimum Typical Lender Minimum Down Payment Best For
    Conventional 620 640-660 3% - 20%+ Buyers with good credit seeking competitive rates
    FHA 500 (10% down) or 580 (3.5% down) 580-620 3.5% - 10% First-time buyers or those rebuilding credit
    VA No official minimum 620-640 0% Active-duty military, veterans, and eligible spouses
    USDA No official minimum 640 0% Moderate-income buyers in eligible rural areas
    Jumbo Varies by lender 700-720 10% - 20%+ Buyers purchasing above conforming loan limits

    Conventional Loans

    Conventional mortgages backed by Fannie Mae and Freddie Mac require a minimum FICO score of 620. However, at that threshold, you will face higher interest rates and will almost certainly pay private mortgage insurance (PMI) if your down payment is less than 20%. Fannie Mae's Loan-Level Price Adjustments (LLPAs) add risk-based fees to your loan that increase as your credit score decreases. A buyer with a 620 score and 5% down payment pays significantly more in LLPAs than a buyer with a 740 score and the same down payment.

    For the most competitive conventional loan pricing, aim for a score of 740 or higher with at least 20% down. This combination eliminates PMI entirely and qualifies you for the lowest available LLPA adjustments.

    FHA Loans

    FHA loans, insured by the Federal Housing Administration, are designed for borrowers who may not qualify for conventional financing. The program minimum is 580 for a 3.5% down payment, or 500 with at least 10% down. FHA loans are a popular choice for first-time home buyers because of their lower credit requirements and down payment flexibility.

    The trade-off is that FHA loans require both an upfront mortgage insurance premium (1.75% of the loan amount, typically rolled into the loan) and annual mortgage insurance premiums that last for the life of the loan if your down payment is less than 10%. Buyers who improve their credit to 620 or above may want to compare FHA and conventional options, because a conventional loan can offer lower total costs once you qualify.

    VA Loans

    The Department of Veterans Affairs does not set a minimum credit score for VA loans, which are available to eligible active-duty service members, veterans, and surviving spouses. However, individual lenders set their own minimums, and most require at least 620 to 640. VA loans offer exceptional benefits: no down payment, no private mortgage insurance, and competitive interest rates. The VA charges a one-time funding fee (typically 1.25% to 3.3% of the loan amount) that can be financed into the loan.

    USDA Loans

    USDA Rural Development loans serve moderate-income buyers purchasing in eligible rural and suburban areas. While the program has no official credit score minimum, the automated underwriting system (GUS) typically requires a 640 score for streamlined approval. Scores below 640 require manual underwriting, which means longer processing times and additional documentation.

    Pro tip: "Lender overlays" are credit score requirements that individual lenders add on top of program minimums. If one lender tells you that you do not qualify, another lender might approve you for the same loan program with the same score. A well-connected real estate agent can refer you to lenders who work with a range of credit profiles. Learn more in our guide on how to get pre-approved for a mortgage.

    The Real Dollar Cost of Your Credit Score

    Your credit score does not just determine whether you qualify for a mortgage. It determines how much that mortgage costs you over time. Lenders price risk into your interest rate, and even a small rate difference compounds into significant money over a 30-year loan.

    The following tiers illustrate how FICO score ranges translate into different mortgage pricing. While exact rates change with market conditions, the relative spread between credit tiers remains consistent. Borrowers in the lowest qualifying tier routinely pay 0.5% to 1.5% more in interest than borrowers in the highest tier.

    Excellent
    740 - 850
    Qualifies for the lowest available rates. Minimal or no LLPA adjustments. Best PMI rates if applicable. Maximum negotiating leverage with lenders.
    Good
    700 - 739
    Slightly higher rates than the top tier, typically 0.125% to 0.25% more. Still competitive pricing with moderate LLPA adjustments. Strong approval odds across all loan types.
    Fair
    640 - 699
    Noticeably higher rates, often 0.5% to 0.75% above the best tier. Higher PMI premiums. Some lender restrictions may apply. FHA may offer better pricing than conventional at the lower end of this range.
    Below Average
    500 - 639
    Limited to FHA (with 10% down below 580) or select lender programs. Rates typically 1% to 1.5% above top tier. Higher PMI and upfront costs. Manual underwriting often required.

    What a Rate Difference Costs on a $400,000 Home

    To put this in concrete terms, consider a buyer purchasing a $400,000 home with 10% down, resulting in a $360,000 mortgage. The table below shows the approximate impact of different rate scenarios across credit tiers. These figures use representative rate spreads based on historical LLPA data published by the Federal Housing Finance Agency (FHFA).

    Credit Tier Approx. Rate Monthly Payment (P&I) Total Interest (30 yrs) Extra Cost vs. Top Tier
    740+ (Excellent) 6.50% $2,275 $459,000 Baseline
    700-739 (Good) 6.75% $2,335 $480,600 +$21,600
    680-699 (Fair) 7.00% $2,395 $502,200 +$43,200
    640-679 (Fair) 7.25% $2,457 $524,520 +$65,520
    620-639 (Below Avg) 7.75% $2,581 $569,160 +$110,160

    Important note: The rates above are illustrative examples based on representative rate spreads between credit tiers. Actual mortgage rates change daily based on market conditions, and individual lender pricing varies. The key takeaway is the relative spread: moving up even one credit tier can save you $20,000 to $60,000 over the life of your loan. Use the calculator below to model your specific scenario.

    Beyond the interest rate itself, your credit score also affects how much you pay for private mortgage insurance. According to data from Freddie Mac and the Urban Institute, a borrower with a 680 score and 5% down payment can expect to pay approximately 0.8% to 1.1% of the loan amount annually in PMI, compared to roughly 0.3% to 0.5% for a borrower with a 760 score. On a $360,000 loan, that difference amounts to $1,800 to $2,160 per year in additional PMI costs alone.

    Credit Score Rate Impact Calculator

    See how your credit score affects your monthly payment and total mortgage cost.

    Your Credit Score Is Just the Starting Point

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    The 90-Day Credit Score Improvement Playbook

    If your credit score is not where you need it to be, the good news is that strategic actions can produce meaningful results in 30 to 90 days. The key is focusing on the factors with the highest point impact in the shortest time frame. The following actions are ranked by their typical effect on your FICO score, based on data from FICO, Experian, and credit industry analysis.

    1

    Dispute Credit Report Errors

    According to a Federal Trade Commission (FTC) study, roughly one in five consumers has an error on at least one of their three credit reports. Common errors include accounts that do not belong to you, incorrect late payment reporting, duplicate accounts, and outdated negative items that should have aged off. Pull your free reports from AnnualCreditReport.com and dispute any inaccuracies directly with each bureau. Errors that are removed can produce immediate score improvements.

    Potential Impact: +20 to 100+ points
    2

    Pay Down Credit Card Balances Below 30% (Ideally Below 10%)

    Credit utilization is the fastest-acting lever for most borrowers. If you are carrying high balances relative to your credit limits, paying them down can produce dramatic score improvements within one to two billing cycles. Focus on the cards with the highest utilization ratios first. If you cannot pay off the full balance, even a partial payment that brings your utilization from 70% to 25% can boost your score significantly. The CFPB recommends keeping balances well below 30% of your total available credit.

    Potential Impact: +20 to 50+ points
    3

    Request a Credit Limit Increase (Without Spending More)

    If you cannot immediately pay down balances, requesting a higher credit limit achieves a similar effect on your utilization ratio. A $5,000 balance on a $10,000 limit is 50% utilization. If your limit is increased to $15,000, that same balance drops to 33% utilization. Many issuers allow limit increase requests online, and some perform only a soft inquiry. Confirm with your issuer before requesting so you avoid an unnecessary hard pull.

    Potential Impact: +10 to 30 points
    4

    Become an Authorized User on a Seasoned Account

    If a family member or trusted person has a credit card with a long history of on-time payments and low utilization, being added as an authorized user can add that account's history to your credit report. This strategy is most effective when the account has a long track record (five or more years), a low balance, and a high credit limit. You do not need to use the card or even have physical access to it.

    Potential Impact: +15 to 40 points
    5

    Avoid New Hard Inquiries and New Account Openings

    In the 90 days before applying for a mortgage, do not open any new credit cards, finance any purchases, or apply for any other loans. Each new application generates a hard inquiry and lowers the average age of your accounts, both of which work against your score. The exception: you should shop multiple mortgage lenders within a concentrated period (ideally 14 days) to take advantage of FICO's rate-shopping window.

    Potential Impact: Prevents 5 to 15 point losses
    6

    Ask Your Lender About Rapid Rescoring

    If you are already working with a mortgage lender and need a quick score update, ask about rapid rescoring. This is a service available through lenders (not directly to consumers) that allows them to submit updated account information to the credit bureaus and receive a new score within days rather than waiting for the standard monthly reporting cycle. This is especially useful after paying down a large balance or resolving a dispute, and it can make the difference between qualifying and being declined.

    Potential Impact: Reflects changes in 3-5 days

    Timing matters: Start your credit improvement efforts at least 90 days before you plan to apply for a mortgage. Some changes (like utilization reductions) take effect within one billing cycle, while others (like dispute resolutions) can take 30 to 45 days. If you are saving for a down payment in parallel, use that time to optimize your credit position as well.

    What to Do If Your Credit Score Is Below 620

    A credit score below 620 limits your mortgage options but does not necessarily mean homeownership is out of reach. Here are the paths available to buyers in this situation.

    FHA Loans with Lower Scores

    Borrowers with scores between 580 and 619 can qualify for FHA financing with a 3.5% down payment. Scores between 500 and 579 require at least 10% down. While these loans come with mortgage insurance premiums for the life of the loan, they provide a viable path to homeownership for buyers who are rebuilding their credit. You will pay higher costs over time, but you can refinance into a conventional loan later if your score improves.

    Non-QM and Portfolio Lenders

    Some lenders offer non-qualified mortgage (non-QM) products designed for borrowers who do not fit standard underwriting guidelines. These loans often accept lower credit scores but typically come with higher interest rates, larger down payment requirements, and may require documentation of alternative credit history (rent payments, utility payments, insurance payments). Portfolio lenders, which keep loans on their own books rather than selling to Fannie Mae or Freddie Mac, may also have more flexible credit score requirements.

    Credit Builder Programs

    If your score needs significant improvement before you can qualify for any mortgage, consider credit builder loans offered by credit unions and community development financial institutions (CDFIs). These small installment loans are designed specifically to help borrowers establish or rebuild payment history. Combined with the strategies in the playbook above, a dedicated credit building effort of six to twelve months can move a borrower from the sub-620 range into conventional loan territory.

    Credit Score Myths That Cost Home Buyers Money

    Misinformation about credit scores leads buyers to make costly mistakes. Here are the most common myths and the reality behind each one.

    Myth: You need a 750 credit score to buy a home. Many buyers delay their home search because they believe a near-perfect score is required. In reality, you can qualify for an FHA loan with a 580 score or a conventional loan with a 620. The question is not whether you can buy, but what it will cost you at each tier.

    Myth: Checking your own credit hurts your score. Checking your own credit generates a "soft inquiry" that has zero impact on your score. You should monitor your credit regularly, especially in the months before applying for a mortgage. Free reports are available annually from each bureau at AnnualCreditReport.com, and many banks and credit card issuers now provide free FICO score access.

    Myth: Closing old credit cards helps your score. Closing a credit card reduces your total available credit, which increases your utilization ratio and can lower your score. It also removes the account from the "average age" calculation once it falls off your report. In general, keeping old accounts open, even if unused, supports a higher score.

    Myth: Paying off collections immediately boosts your score. Under older FICO scoring models, a collection account hurts your score whether the balance is paid or not. The activity of paying it can actually "re-age" the account and make it appear more recent. However, newer FICO models (FICO 9 and 10) ignore paid collections entirely. Ask your lender which scoring model they use before deciding how to handle collection accounts.

    Myth: Your income affects your credit score. Your salary, employment status, and bank balances have no direct impact on your FICO score. Lenders consider income separately during underwriting, but the credit score itself is based entirely on your borrowing and payment behavior.

    How the Right Agent Helps You Navigate Credit Requirements

    Your credit score determines which mortgage products are available to you, but the guidance you receive along the way can make or break your home buying experience. A knowledgeable real estate agent does more than help you find a house. They connect you with lenders who specialize in your credit range, help you understand the true cost of buying at your current score versus waiting to improve, and coordinate the timing of your purchase to maximize your financial position.

    Experienced agents maintain relationships with multiple lenders, including those who work with FHA, VA, USDA, and portfolio loan products. If your credit falls into a gray area where one lender declines you and another approves you, having an agent who knows which lenders to call saves time, protects your credit from unnecessary hard inquiries, and often results in better loan terms. Learn more about choosing the right agent for your needs.

    For buyers who need 60 to 90 days of credit improvement before applying, a good agent will help you build a timeline that aligns your credit work, your savings, and your market entry. They will also help you anticipate closing costs and other expenses so that your financial preparation covers the full picture, not just the down payment.

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    Frequently Asked Questions About Credit Scores and Home Buying

    What is the minimum credit score needed to buy a house?+

    The minimum credit score depends on the loan type. Conventional loans backed by Fannie Mae and Freddie Mac require at least a 620. FHA loans accept scores as low as 580 with 3.5% down, or 500 with 10% down. VA loans have no official government minimum, but most lenders require 620 to 640. USDA loans typically require a 640 for automated approval. Keep in mind that meeting the minimum qualifies you for the loan but not for the best rates. Higher scores translate directly into lower interest rates and lower overall costs.

    How much does a low credit score increase my mortgage rate?+

    The rate impact varies with market conditions, but as a general benchmark, borrowers with scores in the 620 to 639 range typically pay 1% to 1.5% more in interest than borrowers with scores above 740. On a $360,000 loan over 30 years, that difference adds up to $80,000 to $110,000 in additional interest. Even moving from the 680 range to the 740 range can save $40,000 or more over the life of the loan.

    How quickly can I improve my credit score before buying a home?+

    Some improvements can take effect within 30 days, while a comprehensive improvement plan typically requires 60 to 90 days. Paying down credit card balances below 30% utilization is the fastest lever, often producing results within one billing cycle. Disputing errors on your credit report takes 30 to 45 days for investigation and resolution. For more significant rebuilding, expect to invest six to twelve months of consistent effort. Start the process as early as possible before your target home purchase date.

    Does getting pre-approved for a mortgage hurt my credit score?+

    A pre-approval does involve a hard credit inquiry, which can temporarily lower your score by 2 to 5 points. However, FICO's scoring models are designed to recognize rate shopping. If you apply with multiple lenders within a 14 to 45 day window (depending on the FICO version), all of those mortgage inquiries count as a single inquiry for scoring purposes. This means you should feel comfortable shopping several lenders for the best rate without worrying about damaging your credit.

    Is an FHA loan better than a conventional loan for buyers with fair credit?+

    It depends on your specific score and down payment. For buyers with scores between 580 and 619, FHA is typically the only option. For scores between 620 and 679, comparing both options is essential. FHA loans often have lower interest rates at these score levels, but they require mortgage insurance for the life of the loan (unless you put 10% or more down, in which case MIP drops off after 11 years). Conventional loans allow you to cancel PMI once you reach 20% equity. A good lender will run both scenarios side by side so you can see which costs less over your expected ownership period.

    What credit score do I need to avoid PMI?+

    PMI is not determined by your credit score alone. It is required on conventional loans when your down payment is less than 20% of the purchase price, regardless of your score. However, your credit score directly affects how much you pay for PMI. A borrower with a 760 score pays roughly half the PMI rate of a borrower with a 680 score. To avoid PMI entirely, you need either a 20% down payment on a conventional loan or a VA loan (which does not require PMI at any credit level).

    Why is my mortgage credit score different from my free credit score?+

    Free credit monitoring services typically show your FICO 8, VantageScore 3.0, or similar consumer scoring model. Mortgage lenders use older, industry-specific FICO versions: FICO Score 2 (Experian), FICO Score 5 (Equifax), and FICO Score 4 (TransUnion). These models weigh credit factors differently, which can produce scores that are 20 points or more higher or lower than the consumer version. The mortgage-specific scores tend to be more conservative. This is why you should ask your lender for your actual qualifying score rather than relying on consumer monitoring tools.

    Should I wait to buy a house until my credit score improves?+

    This decision depends on how close you are to the next pricing tier, how fast you can realistically improve your score, and what the housing market is doing. If you are 20 to 40 points away from a tier that would save you $40,000 or more over the life of the loan, waiting 60 to 90 days to implement credit improvement strategies is often worthwhile. However, if home prices in your market are rising faster than your credit-related savings, delaying could cost you more than the rate difference. A knowledgeable real estate agent can help you weigh these factors based on local market conditions.

    This article is for informational purposes only and does not constitute financial, legal, or credit repair advice. Credit score requirements, interest rates, and loan program guidelines change frequently and may vary by lender and location. The rate examples used in this article are illustrative and based on representative spreads between credit tiers published by the Federal Housing Finance Agency (FHFA). Actual rates depend on market conditions, lender pricing, and individual borrower profiles. Consult a licensed mortgage lender for personalized rate quotes and pre-approval. Credit score data referenced is based on publicly available information from FICO, the Consumer Financial Protection Bureau (CFPB), Freddie Mac, Fannie Mae, and the Federal Trade Commission (FTC). EffectiveAgents is a real estate agent matching service and does not provide mortgage lending or credit repair services.

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    About the author

    Kevin Stuteville

    EffectiveAgents.com Founder

    Kevin Stuteville is the founder of EffectiveAgents.com, a leading platform that connects homebuyers and sellers with top real estate agents. With a deep understanding of the real estate market and a commitment to innovation, Kevin has built EffectiveAgents.com into a trusted resource for home buyers and sellers, nationwide. His expertise and dedication to data transparency have made him a respected voice in the industry.

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